WEKO3
アイテム
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To investigate whether a carbon ion beam alone or in combination with cisplatin has a beneficial effect compared to X-rays, we target triple negative (TN) breast cancer stem-like cells (CSCs). \nMethods: Human breast CSCs sorted from MDA-MB-231 cells were treated with a carbon ion beam or X-ray irradiation alone or in combination with cisplatin (CDDP), and then colony, spheroid and tumor formation assays, RT-PCR Array analysis, and immunofluorescence γH2AX foci assay were performed.\nResults: The colony, spheroid formation, and tumorigenicity assays confirmed that CD44+/CD24- and ESA+/CD24- cells have CSC properties in MDA-MB-231 and MDA-MB-453 cells, respectively. The proportion of CSCs was more enriched after CDDP combination with either X-ray or carbon ion beam, however carbon ion beam combined with CDDP significantly suppressed colony and spheroid formation and more significantly inhibited cell cycle progression (sub-G1 arrest) compared to X-ray combined with CDDP or carbon ion beam alone. RT-PCR Array analysis showed that carbon ion beam combined with CDDP significantly induced apoptosis-related Cytochrome c, almost completely eliminated expression of the CSC markers CD44 and ESA, and significantly inhibited angiogenesis, and metastasis-related HIF1α and CD26 compared to carbon ion beam alone, X-ray alone, or X-ray combined with CDDP. 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Carbon Ion Beam Combined with Cisplatin Effectively Disrupts Triple Negative Breast Cancer Stem-Like Cells In Vitro
https://repo.qst.go.jp/records/47508
https://repo.qst.go.jp/records/475082b04f7e4-0f09-4651-a460-37f815f16426
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2016-08-25 | |||||
タイトル | ||||||
タイトル | Carbon Ion Beam Combined with Cisplatin Effectively Disrupts Triple Negative Breast Cancer Stem-Like Cells In Vitro | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Sai, Sei
× Sai, Sei× Vares, Guillaume× Ho, Kim Eun× Karasawa, Kumiko× Bing, Wang× Nenoi, Mitsuru× Horimoto, Yoshiya× al, et× 崔 星× Guillaume Vares× Kim Eun Ho× 唐澤 久美子× 王 冰× 根井 充× 堀本 義哉 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Aims: Although a relatively small proportion of all breast cancer (BC), triple negative (TN) BC is responsible for a relatively large proportion of BC deaths because of its worse clinical outcome. To investigate whether a carbon ion beam alone or in combination with cisplatin has a beneficial effect compared to X-rays, we target triple negative (TN) breast cancer stem-like cells (CSCs). Methods: Human breast CSCs sorted from MDA-MB-231 cells were treated with a carbon ion beam or X-ray irradiation alone or in combination with cisplatin (CDDP), and then colony, spheroid and tumor formation assays, RT-PCR Array analysis, and immunofluorescence γH2AX foci assay were performed. Results: The colony, spheroid formation, and tumorigenicity assays confirmed that CD44+/CD24- and ESA+/CD24- cells have CSC properties in MDA-MB-231 and MDA-MB-453 cells, respectively. The proportion of CSCs was more enriched after CDDP combination with either X-ray or carbon ion beam, however carbon ion beam combined with CDDP significantly suppressed colony and spheroid formation and more significantly inhibited cell cycle progression (sub-G1 arrest) compared to X-ray combined with CDDP or carbon ion beam alone. RT-PCR Array analysis showed that carbon ion beam combined with CDDP significantly induced apoptosis-related Cytochrome c, almost completely eliminated expression of the CSC markers CD44 and ESA, and significantly inhibited angiogenesis, and metastasis-related HIF1α and CD26 compared to carbon ion beam alone, X-ray alone, or X-ray combined with CDDP. The immunofluorescence assay showed that not only the number but also the size of γH2AX foci in CSCs were larger 24 h after carbon ion beam combined with CDDP compared to those of X-ray alone and X-ray combined with CDDP. Conclusions: Carbon ion beam combined with CDDP has superior potential to kill TN breast CSCs with irreparable severe DNA damage and enhanced apoptosis. |
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書誌情報 |
Molecular Cancer (Online Only URL:http://www.molecular-cancer.com/) 巻 14, 号 166, 発行日 2015-08 |
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出版者 | ||||||
出版者 | BioMed Central Limited | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1476-4598 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1186/s12943-015-0429-7. |